The reasons the Robin Williams/John Travolta vehicle Old Dogs never works are as multi-layered and repellent as a festering bandage on a head wound. Through its parade of slapstick comedy and maudlin, unearned sentiment, the focus never leaves the two leads as they grapple with aging, business, and the constant irritation of having children present. It's a curiously navel-gazing film for old men, dumbed down for second graders. by Dave Bow